Add a per-vcpu list of (emulated) timers.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

Index: kvm-new/arch/x86/include/asm/kvm_host.h
===================================================================
--- kvm-new.orig/arch/x86/include/asm/kvm_host.h
+++ kvm-new/arch/x86/include/asm/kvm_host.h
@@ -375,6 +375,8 @@ struct kvm_vcpu_arch {
 	u64 mcg_status;
 	u64 mcg_ctl;
 	u64 *mce_banks;
+
+	struct list_head timers;
 };
 
 struct kvm_mem_alias {
Index: kvm-new/arch/x86/kvm/kvm_timer.h
===================================================================
--- kvm-new.orig/arch/x86/kvm/kvm_timer.h
+++ kvm-new/arch/x86/kvm/kvm_timer.h
@@ -7,6 +7,7 @@ struct kvm_timer {
 	bool periodic;
 	struct kvm *kvm;
 	struct kvm_vcpu *vcpu;
+	struct list_head vcpu_timer;
 };
 
 void kvm_timer_init(struct kvm *kvm, struct kvm_timer *ktimer);
Index: kvm-new/arch/x86/kvm/x86.c
===================================================================
--- kvm-new.orig/arch/x86/kvm/x86.c
+++ kvm-new/arch/x86/kvm/x86.c
@@ -4644,6 +4644,8 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *
 	BUG_ON(vcpu->kvm == NULL);
 	kvm = vcpu->kvm;
 
+	INIT_LIST_HEAD(&vcpu->arch.timers);
+
 	vcpu->arch.mmu.root_hpa = INVALID_PAGE;
 	if (!irqchip_in_kernel(kvm) || kvm_vcpu_is_bsp(vcpu))
 		vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
Index: kvm-new/arch/x86/kvm/timer.c
===================================================================
--- kvm-new.orig/arch/x86/kvm/timer.c
+++ kvm-new/arch/x86/kvm/timer.c
@@ -53,11 +53,13 @@ void kvm_timer_init(struct kvm *kvm, str
 	ktimer->kvm = kvm;
 	hrtimer_init(&ktimer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 	ktimer->timer.function = kvm_timer_fn;
+	INIT_LIST_HEAD(&ktimer->vcpu_timer);
 }
 
 void kvm_timer_vcpu_bind(struct kvm_timer *ktimer, struct kvm_vcpu *vcpu)
 {
 	ktimer->vcpu = vcpu;
+	list_add(&ktimer->vcpu_timer, &vcpu->arch.timers);
 }
 
 void kvm_timer_start(struct kvm_timer *ktimer, u64 interval, bool periodic)

--